. >> we're joined now by cnn chief congressional correspondent dana bash, she is in washington. obviously this move is very heavy with implications because it goes to the heart of the question who was responsible for the chemical weapons attacks. >> that's exactly right. and even more basic is did the chemical weapons attack actually happen? we have that report from the outside government and from groups who were there, but this is very, very important. because part of the problem and the pickle of that president obama and his administration is in right now is that you have finger pointing, you have the syrian rebels saying that the syrian government did it and the syrian government is saying that the rebels did it. so we have the u.n. there trying to figure out what happened. this could make life easier or depending on what they find a lot harder for the president to figure out policy which he has had some criticism about because the president has said he's just been too quiet and to tend tiff about it. >> the idea that chemical weapons were used with death tolls of up to 1,300